On Wed, 5 Aug 2026 17:13:28 +0200 Franco Martelli <[email protected]> wrote:
> On 05/08/26 at 15:56, Anssi Saari wrote: > > > > I recently updated my Debian desktop to Trixie. It went fine but > > Grub broke. It got as far as "Welcome to GRUB" then black screen > > and reboot. > > > > I fixed that by doing grub-install and update-grub in a chroot but > > what went wrong and can I avoid this annoyance in the future? Is > > this a known problem? I remember seeing an off hand mention that > > this "often" happens on Debian and derivatives but didn't pursue it > > then and don't have a reference. And it's never happened to me > > before. > > Grub wasn't updated in the recent 13.6 Trixie update nor it seems > that is going to be updated now. The only issue I had related to Grub > it was mentioned in this post: > > https://lists.debian.org/debian-user/2026/03/msg00353.html > > but it doesn't make my system not bootable and I never heard/suffered > about issue with Grub in all previous Stable releases (at least from > Squeeze). I don't have UEFI partitions installed in my system maybe > something else broke your boot sector or maybe the boot sector was > not properly updated and it still pointed to the no longer existing > old kernel image. > > If you also don't have UEFI the package "grub-pc" could have issue > installing Grub on the correct drive's boot sector (see my post > above). > Yes. I'm typing this on an Acer laptop, which after an upgrade to Trixie, dropped me to a grub prompt. After messing about for some time, I gave up and installed from scratch. It still didn't boot. I did ask here about it, but it didn't help. The UEFI isn't seeing the Trixie installation. Using the installer to boot and get efibootmgr running, that can see Trixie, and after a NextBoot edit, would boot to it. But not without NextBoot set. So I have a boot script to run efibootmgr and set NextBoot, and all is well, for at least some value of 'well'. This doesn't sound like the OP's problem, but here is a Trixie upgrade and reinstall, neither of which boot from cold on a computer which runs it perfectly well. -- Joe
